Visualization of the initial condition in a time-dependent simulation of the interaction of a LISM fluctuation with the heliosphere. The plasma density n_p/n_p∞ distribution is shown in color. The LISM inflow is along x-axis. Black lines show some magnetic field lines starting in the B − V plane. Some of the magnetic field lines are draped onto the HP. Red planar structure in front of the simulated heliosphere is the LISM density perturbation. Close to the Sun located at (0,0,0), an internal heliospheric magnetic field line is shown (red line) in the form of a conical spiral.